Hydraulic Filters and Housings
Inline, high-flow, duplex and tank-top series with pleated cartridge elements. Bypass valve and clogging indicator optional.
Specifications
- 14,000 L/minHigh flow and duplex, max. flow
- 6–16 barHousing working pressure
- 3–50 µmBy β ratio, ISO 16889
- PN6–40Flanged connection
- For pressure line, return line and off-line filtration
- Carbon steel housings
Series (L/min): inline 500–1,400 · high flow 500–14,000 · duplex 1,000–14,000 · tank top 500–1,400.
Where the filter goes
A pressure filter right after the pump protects servo and proportional valves. A return filter catches wear particles before the oil reaches the tank. Off-line filtration circulates tank oil through a separate pump and filter without stopping the machine.
Smart Filter pleated cartridge elements cover all three duties. Carbon steel housings work at 6–16 bar and are used on low-pressure lines such as return and off-line circuits.
Micron rating and beta ratio
A micron figure alone says little; what matters is how many particles of that size the element stops. The beta ratio from the ISO 16889 multi-pass test expresses this: an element with β10(c) = 200 retains 99.5% of particles 10 µm and larger. Smart Filter pleated elements are rated 3–50 µm by beta ratio. Housings are PN6–40 flanged; bypass valves and clogging indicators are optional.
Frequently asked questions
When should the element be changed?
When the clogging indicator shows the differential pressure limit has been reached, not on a fixed calendar. Without an indicator, oil analysis (ISO 4406 code) is the reliable guide.
Why use a bypass valve?
It opens at a set differential pressure so a clogged element is not ruptured and the system is not starved of oil. Use it with a clogging indicator and change the element in time.
What flows can you handle?
High flow and duplex housings pass up to 14,000 L/min.
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